Various-speed transmission



May 20 1924 1,494,726

E. l.. WEISS VARIOUS SPEED TRANSMISSION Filed May 24. 1923 s 'sheets-sheet l n .,f I v ,lllllll/111010111111111!!! i 24 23 2l 20 a5 wi 0.52' il* 1813; IS7/ 1W w I I uw 1 i iiikffl "I it `{ll/HlA hill v u May 20 1924.v

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3 Sheets-Sheet E L WEISS VARIOUS SPEED TRANSMISSION Filed May '24 May 20 1924. E. L. WEISS VARIOUS SPEED TRANSMISSION Filed May 24, 1925 3 Sheets-Shet 5 Patented May 20, 1924.

rls, or PASADENA, CALIFORNIA. A

ftiifg iii bili@ Fig'. '5 is fiifagiis'viisb 'jsetiioii bfi the plneV the shaft 6 is in operation. Disposed between the loose gears 19 and 20 is an axially shiftable clutch 21 having end faces adapted to positively engage clutch faces 22 provided on the adjacent faces of the gears 19 and 20; the clutch member'21 being splined or otherwise non-rotatively but slidab'ly `mounted on may be oscillated by any suitable means, as-

for instance a link 26, which may extend to the 'drivers or operators seat vor station, or be .otherwise suitably disposed of. Thus it will be seen that when the clutch `lever 23 is operated, the clutch 21 will be thrown into mesh with either of the gears 19 or`20 and this willresult in rotation of the screw 15 and the carriage will be shifted in one di rection or the other, as desired.

Since the rock shaft 24 will shift lwith the carriage 11, it will move in thebox slot 3a, and means: are provided for automati-v cally tripping the lever25 and theclutch shift-ing lever 23 as the rock" shaft approaches the ends of the slot so as to rinsure positive disconnection of' the' clutch member 21 from an engaged gear. For this` purpose the rock shaft 24 is provided with oppositely extending lugs 24a, and thesevare designed to encounter inclined 'cam-forming lugs 27 which are provided on the top of the gear box section :3, so that irrespective of which way the rock shaft 24 may have been turned, one ofthe lugs' 24a will encounter one of the inclined cams or shoulders 27 and, this 'being properly disposed, will de- V,fiect the engaged lug 24a of the rock shaftto the neutral position of the rock shaft and its lever 23 and will, therefore,pdisconnect'the `clutch member 21 and prevent further shifting of the carriage as it approaches thelimits of its movement.

Mounted in the opposite end of the vgear box from the driving shaft 6 is a driven shaft 3Q, and this is provided within the gear boxV with a driven gear wheel 31 which, in the present case, is shown as ofthe internal gear form and, while not necessarily so, is preferably provided with gear teeth 32'of the herring-bone style. Means areiprovided and mounted upon the carriage `11 for i driving the gear 31,and this means includes a device which may be considered and termed a variable toothed pinion in that` it includes a rotative device thefformoffa frame or wheel driven by the main shaft l() and having driving dogs or elements arranged in asymmetrical order about the axis of rotation of the carrying frame or wheel, and which elements are adapted to be ried by thecarriage 11 includes atubular shaft 33 journaled on the carriage in parallel position to; themain shaft 10 thereon, and to one end Aof the hollow shafty 33 is attached,l by a `flange 34, arotary member which may be inthe form ofa frame orA a disc 35, here shown as'j provided with Iav peripheral Hangs 36, andA` which.V wheel flange v36has its edge disposed relatively close to the contiguous edge of the internal gear 31,

Ifo'r conservation Aof space and compactness of elements. The hollow -jshaft `33 is provided with a shiftable gear 37, meshing with an intermediate gear 38 journaled on a support provided by, the carriage 11 and' meshing with a driving gear 39,7fixed on thel main shaft 10. This provides for the positive rotation of the hollow shaft 33 bythe main shaft in one direction. l i

To drive .the counter orhollow shaft 33 in the opposite.' direc-tion, there is splined on the vhollow shafta gear 40, adapted to be shifted, by a shift lever'41, into mesh `with a gear 42 whichis fixedly provided on the main shaft 10 so, that, when the gear" 4G is shifted into mesh lwith the gear 42, the shaft 33 will be rotated in a direction reverse to the direction of rotation causedby the intermediate `'gear 38.; the gearl 37 also being splined on the shaft 331so as tobe disengaged when the gear .42 is engaged.' i i The gear shift, lever 41 is secured on -a rock'shaft 41a which extendsup through, and moves laterally in, a slot 3b provided in the shell section 3. Theupper end of the rock shaft'41?l `is provided with a lever arm 41h, and this is adapted to be oscillated to effect a shifting of the gears 37%() as by means of a connection 41, which may be extended to rany, convenient operating Aposition. i y

` From the above it will beseen that means are provided for laterally'shifting the carloo lill

riage 11 and lfor Vcontinually driving the wheel 31.`

To transfer power fromthe driving'wheel 35ito the gear 31, the wheel is provided `with relatively radially shiftable devices, one or .inelsh "with "the internal lgear 3l. HV Suoi-1'jdfevices, therefore, servethe -purp'ose of and act y' 'driving dogs engaging the gear 31. ]jrfu erably, these driving dogs'are inthe form of cylindrical p1n1onsl45,"a suitable nuinbery of which is provided, and these'pinionsf'havey a tooth form, corresponding to the te'eth'S'Zoi' 'of the' gear 31, Yso as'to properlyniesh therewith asthe driving pinions 4 5, rotating in 'an f orbit about the l artis of the shaft l succesively 'move into "driving engagement with the gear 31.,

Thel pinions are disposed with aiesparallel `to the"o`onnter wshaft`r 33 'and are also 'In the ,present arfagmeg @each p iiim 45 is securedon a'shaft v46, which is 'rota- ,tively journaled in a 'respeotiveslidingblock T47, 4and ythese blooks L0are substantially f radium movmeat er vided inlthedriving avhel35. Meansfare jprovided "for ineohanially 'Shifting the 'p inion blocks 47. outwardly lor inwardly 'Concurrentlyby power roin' the ymain shaft V1'O, and suoh'nieans include 'aI 'set of radial1y"disposed screws l '50 engaging threaded apertures g' Iprovided therefor in the"shifting'blooks'47, the soreWs Ibeing jornaled inthe flange 36 "of the Wheel ,and in'an`inner jveb 36a. A

The serewsr 50 have"provided` at their vinner ends fbevel rloinion's 151a1i`d vthese 'are' oonl'stantly in mesh With the dri'vii`1`g`gearf52,

Which is4 secured on "af spindle "585 extending axially through rthe tubular shaft Sfjand having on its opposite end'a'lspur gear pinion 5 4. This fpinion is fin 'Constant "rneshvvith the iXed. rackl 55. vThe"f unotionfof `this 'instrumentality isto e'feta rotation of the radial sereivs'O and a' shifting ofthepinions r45and their bearing'bloo'k's 47en`eiirr'ently `vvith a shifting'of the (':arriage "11 rineither direction. A

Obviously, asthe Carriage isiniovedkin one direction, the spur pinion orgear 54 Willbe rotated bythe iXed'raok 55, and this vvillireult in the rotation 'of the`s'un-fg`ear`52`and the several 'engaging pinio'nsflV 'ofthe Vs olfevvs 50. Rotation of the serevvs'inoneJdireetin, as Whenthe carriage 1l-is 'shifted awayfrm they axial linefof the'gearfvl,vvillfreslt in the relative'eontra'otion' ofthe setof pinins 45 and, as thefdianeterof the oirole'invvhioh tively increased inr ing thevteeth Aof the driviiigpin'iforis o fjoroperly l'ipresented A'asf lieY fp'i'nis 'Asivel'y roll .'gear 31.

ions or dogs-'45.

fra-ine 35, andy Sineth'is" is `-rota' tively driven primarily froln "the Inain A"shaft l10, Veit* 'will 4'i`)e`-'se'e`n s that the rdevices 45, therefore, "form '@neuyfenuy withI 'the :shifting of, the 'Crria'ge 11l Sofas to :present 'theI teeth Uin proper position to easily mesh with the internal anarheee "mesfaauyengagea by radially aires v'vhil'e tiiriiin'gin their vorbit.;abtuit wthe"115 erfeotfakn increase o'rifa deerease in ,the oirole wegging, 'in the esta "in wie@ the l tion, and have provided means for increas-A ing or 'decreasing the circle 'and orbit in which the pinions move, and at the same time provided for the constant mesh of one oi' more of the pinions withthe kdriven gear wheel ofi the transmission'. o

Further objects, modifications and varial tions .may be resorted to within' the prinlio f ciple of the invention.

What is claimed is At i l., A variable speed mechanism, including relatively eccentrically shiftable driving and driven rotative elements, oneof which i y-is provided with` avset of circularly disposed is eiective transmitting devices adapted to engage ythe other element, `and said` d evices bet ing radially shittable with respect toit-he d axis of theirorbit so. as to provide a substanv tially ycircnmlterentially variable, powertransmitting' connection between the two elements.' g Y' 2. A variable speed mechanism, 4including relatively eccentrically, l shiittable driving and driven rotative elements, set` with end faces` in closel juxtaposition, and one of which is provided with a set of circularly. Adisposed effective transmitting devices adapted to engagethe other element, and said devices being radially sliiftable with respect to the axis of thcirorbit so as to provide a substantially circumferentially variable, power- -U transmitting connection between the two elements.

3,. A variable speed mechanism. including relatively eccentrically sliiftable driving and driven rotative elements, one of. which is provided with a set of circularly disposed etfectivetransmitting devices adapted to engage the other element, and said devices being `radiallyshiftable with respectvto the axisvof their orbit so as tovprovide a substantially circninferentially variable, powertransmitting connection between the two ele1nents,the kdriven element having internal gear teeth and said devices being provided with gear teeth to mesh with the teeth of the 4f. A variable speed mechanism,

cooperative toothed element.

relatively eccentrically shiitable driving and Adriven rotative elements, `one of which is provi-ded with ra set of circularly disposed effective transmitting devices adapted to enthe other element, and said devices beingv radially shittable with respect to the 'axis oitheir orbit so as to yprovide a sub-v stantially circumferentially variable, powertransniitting connection between the two elevments, the driven element consisting` of aninternal gearrand said devicesl consistingof gear pinions adapted to successively roll into intermesh with the internal'gear teeth.

, 5. A variable speed mechanism, including relatively eccentricallyshift-able driving and dri-ven rotative elements, one of which is provided `with a set of circularly disposedl `tially including,

effect-ive transmitting devices adapted to engage the other element, and said devices being radially shiftable with respect to the axis ot' their orbit so as to provide a substancircuniiierentially variable7 powertransmitting connection between the tweelements, and means for shifting the element carrying said devices and concurrently, ra-

dially shitting said devices as to the center .said Adevices being rotatively.. mounted on their carrying element.

7. A variable. speed mechanism, includ-l ing relatively eccentrically shiftable driving and driven rotative elements, one of which is provided with' a vset of circularly f disposed effective transmitting devices adapted to engage the other element, and

said devices being radially shiftable with respect to theaxis of their orbit so as to provide a substantially circumferentially varia,- ble, power-transmitting connection between the two elements, said devices being rota tively ymounted on their carrying element,

. and means for shitting the carrying element land lconcurrent with the shifting action rotating said devices on their own axes to cause them to have a rolling, meshing action with the coordinate element.

8. A variable speed mechanism, including relatively eccentrically shiftable Y, driving and driven rotative.` elements, one of which is provided withy a set of circularly disposed effective transmitting devices adaptedto engagethe other element, and said devicesbeing radially shiftable vwith respect tothe axis of theirorbit soas to provide a substantially circumiierentiallyvariable, powertransmitting connection between the two elements, means for shifting the element carrying the said devices laterally-as to the aXis of the other element, and meansfor concurrently shifting the said deviceswhen their lcarrying element is laterally shifted, whereby to increasek the circle of their orbit or to decrease the circle of their orbit.vr

9. A variable speed mechanism, including relatively eccentrically shiftable driving and driven vrotative elements, one' of which is provided withfa set of circula/rly disposed effective transmitting devices adapted to engage the'other element, and said devices'being radially-shiftable with respect to the axis of their orbit soas to provide a substantially' circumferentially variable device-carrying elementin either of two g' ii rections. j jyf 1*" 10. A variable speed, power-transmitting and v'reversing mechanism, `i'n'cluding rela# tively y eccentrically shiftable' driving` and driven rotative elements, one of whicligi's provided with a'set otcirculaily disposed' effective transmitting pinions adapted togen'- gage the other element, k'and 'said-pinions'bef ing radially shiftable" with respect L-to airis of their orbit so to'provide avsvubstantially circiii'nterentially variablapowei'jtransmitting connection between the: twoele- Lk thefdriv ments, and meansioradrivi'ng the ioii- 1., 1.1M .M l. L-.f carrying element in either A'of'tvvo directions. 11.L A variable ,speed 'in'echanis"rn,"i'nlifif ing relatively 'ecceiitric'ally' sliirftable'dr'i inlg" Yand vdriven"rotative element's,'o'- i which is provided with a, set of 'circularly disposed eiiective litiia'iisinitf" devices adapted to engaged,thez,otherjelenieria said devices being radially shiftable with respect to the axis of their orbit so as to provide a substantially circumferentially variable, power-transmitting connection between the two elements, and power-driven means for shifting the element carrying said devices and concurrently, radially shifting said devices as to the center of their orbit.

12. A variable speed mechanism, including relatively eccentrically shiftable driving and driven rotative elements, one of which is provided with a set of circularly disposed eiiective transmitting devices adapted to engage the other element, and said devices being radially shiftable with respect to the axis oit their orbit so as to provide a substantially circumferentially variable, powertransmitting connection between the two elements, and power-driven, manually controlled means for shifting the element carrying said devices and concurrently, radially shifting said devices as to the center of their orbit.

13. A variable speed, power-transmitting mechanism, including a rotary element to be driven, a driving, rotary element having a plurality ot' effective driving devices adapted to engage the driven element, and means for radially shifting said devices inwardly or outwardly to vary circular orbits in which the devices are adapted to sweep when the driving element is rotated; the devices being arranged symmetrically as to the axis of the driving element.

14. A variable speed, power-transmitting mechanism, including a rotary element to be driven, a driving, rotary element having a plurality of effective driving devices` adapted to engage the driven element, and means for radially shifting said devices inwardly or outwardly to vary circular orbits in which the devices are adapted to sweep ed to engage the wiia are ailiviiig avertie-a1; is; rama; are de." l

vices arr ige'dsy'innietrically 4as' to the a-'Xli's' `fthe driving element, "and shift# ing"nrieansv being operative to `shift the said devices in symmetrical action, vwhereby to for-radially -fshili ng said "devicesA inwardly orA outwardly kto vary ,circular orbitsy in wliiclik'the ydevices areadapted 'to sweepwhe'n ,rotated the' devices rica-lly 'as to "the axis element s bmw S'm Y, driving 'v element; and .said shifting being a b g Operative feo shifter@ saai ael vic'es symin ica-lifgaction, ,wherebyY to change1 me relative `ratio of theorbit, te the engaged partv oitheA driven element, said de# m fixed ftotheir carrying 16. variable speed, power-transmitting mechanism, including a rotary element to be drive-n, a driving, rotary element havinga plurality of eective driving devices adapted to engage the driven element, means for radially shifting said devices inwardly or out-L wardly to vary circular orbits in` which the devices are adapted to sweep when the driving element is rotated; the devices being arranged symmetrically as to the axis of the driving element, and said shifting means d'riying i' devices adaptf ven element, and means ico being operative to shift the said devices in symmetrical action, whereby to change the i relative ratio of the orbit to the engaged part of the driven element, said devices being normally fixed to their carrying element,

and means for relatively rotating the said i devicesas to their carrying element while the orbit of the devices is being changed.

17. In a variablev speed, transmission mechanism, a rotativey element, and a set ot circularly arranged pinions adapted tobef driven in a circular orbit while operatively engaging the said rotative element, said devices being adjustable to vary their orbit.

18. In a variable speed, transmission mechanism, a rotative element, a set of circularly arran ed pinions adapted to be driven in a circu ar orbit while operatively engaging the said rotative element, and means for increasing or decreasing the orbit of the said pinions so as toeect a change of speed between the set of pinions and the rotative element engaged by the pinions.

19. In a variable speed, transmission mechanism, a. rotative element, la set of circularly arranged devices adapted to bel driven in a circultr orbit while operatively engaging the said rotative element, means for increasing or decreasing theorbit of the said devices so as to elect a change of speed between the set of devices and the vrotative elementengaged by the devices, and a rotative element carrying the said devices and whose axis of `rotation is the axis of. the variable orbit of said devices.

20. In, a variable V speed, transmission mechanism, a rotative element, yaset of circularly arranged pinion gears adapted to be driven in a circular orbit while operatively engaging the said rotative element, and means for driving the set of gears in either direction around their orbit.

2l. In a variable speed, transmission( mechanism, a rotative element, and a set of circularly arranged gears adapted to be driven in a circular orbit while operatively.

engaging the said rotative element, said rotative element including awheel having aA circular, interior toothed face which is cooperative with the said` gears as they successively sweep into effective, contacting position therewith. l Y g t 22.v In a variable speed, ,transmission lmechanism, a rotative, internal gear element,

radially adjustable relative to the center of their circle and which operatively enga e an internal face of the 'said element, the said pinions being combined vto rotate as a unit about the center of' the circle.

24. In a power transmitting` mechanism, combined, mutually engaging, rotative instrumentalities, one of the instrumentalities including devices in circular arrangement and whichl are radially adjustable as to the center of such arrangementy whereby to increase or decrease the length of the orbit of the devices when their carrying instrumentality is rotated.

In testimony whereof I have signed my name to this specification.

ERNEST L. wEIss.y 

